If you need to measure a distance, it is tempting to reach for the ubiquitous ultrasonic module like an HC-SR04. These work well, and they are reasonably easy to use. However, they aren’t without ...
The various ways your PC-screen “privacy” can be compromised. How a sensitive time-of-flight (ToF) transducer can be a critical privacy (and power-saving) building block. The many circumstances for ...
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